气相色谱用对照品 无水乙醇 标准查询与下载



共找到 150 条与 气相色谱用对照品 无水乙醇 相关的标准,共 10

1含量(C2H5OH),w/% ≥ 99.9 2密度(20℃),ρ/(g/mL) 0.789~0.791 3与水混合试验 合格 4蒸发残渣,ω/% ≤ 0.0005 5酸度(以 H+计),b/(mmol/g) 

Chemical reagent — Reference material for gas chromatography — Ethanol

1含量(CH3OH), 2密度(20℃), 3与水混合试验 合格 4蒸发残渣, 5水分(H2O), 6酸度(以 H+计), 7碱度(以 OH-计), 8易炭化物质 合格 9羰基化合物(以 CO 计), 10还原高锰酸钾物质

Chemical reagent — Reference material for gas chromatography — Methanol

1含量(C3H8O),w /% ≥ 99.90 2密度(20℃),ρ/(g/mL) 0.784~0.786 3蒸发残渣,w /% ≤ 0.001 4与水混合试验 合格 5酸度(以 H+计),b

Chemical reagent — Reference material for gas chromatography — Isopropanol

本标准规定了化学试剂  高效液相色谱用试剂  乙醇(无水乙醇)的性状、规格、试验、检验规则和包装及标志。 本标准适用于化学试剂  高效液相色谱用试剂  乙醇(无水乙醇)的检验

Chemical reagent— Ethanol for high performance liquid chromatography

含量(C4H8O),w/% 色度/黑曾单位 密度(20℃),ρ/(g/ml) 折光率() 与水混合试验 蒸发残渣,w/% 水分(H2O),w/% 酸度(以H+计),b/(mmol/g) 还原高锰酸钾物质(以O计),w/% 易炭化物质 丙酮(CH3COCH3),w/% 甲醇

Chemical reagent — Reference material for gas chromatography — 2-Butanone

Schválení ST SEV 2969-81 doporu?ilo ministerstvo pr?myslu ?SSR, Praha. Zpracovatel: Chemopetrol, k. p., Chemické závody ?SSP Litvínov -Luděk Laurich

Determination of ethanol by gas chroma- tography

本文件描述了化妆品中二乙二醇单乙醚的气相色谱-质谱测定方法的原理、试剂和材料、仪器设备、试验步骤、试验数据处理、回收率、精密度等内容。 本文件适用于水剂类、乳液类、膏霜类和喷雾类化妆品中二乙二醇单乙醚的测定。 本文件的方法检出限为0.25 mg/kg,定量限为0

Determination of diethylene glycol monoethyl ether in cosmetics—Gas chromatography mass spectrometry

1含量(C6H12),w/% ≥ 99.90 2密度范围(20℃),ρ/(g/mL) 0.778~0.779 3结晶点,t/℃ ≥ 6.0 4蒸发残渣,w/% ≤ 0.002 5苯(C6H6),w/% 

Chemical reagent — Reference material for gas chromatography — Cyclohexane

Determination of ethylene glycol and triethylene glycol in diethylene glycol for industrial use (gas chromatography)

This International Standard specifies a gas liquid chromatographic reference method for the determination of the sterol composition of anhydrous milk

Anhydrous milk fat -- Determination of sterol composition by gas liquid chromatography (Reference method)

本标准规定了化妆品中乙二醇甲醚、乙二醇乙醚、二乙二醇甲醚的检测方法。本标准适用于膏霜、乳、液类化妆品中乙二醇甲醚、乙二醇乙醚、二乙二醇甲醚的测定。本标准对乙二醇甲醚、乙二醇乙醚、二乙二醇甲醚的检出限为15 mg/kg,定量限为50 mg/kg

Determination of 2-methoxyethanol, 2-ethoxyethanol and 2-(2-methoxyethoxy) ethanol in cosmetics.Gas chromatography

Methanol poison, technical. Gas chromatographic method of ethyl alcohol determination

1含量(CH2Cl2),w/% ≥ 99.90 2色度/黑曾单位 ≤ 10 3密度(20℃),ρ/(g/mL) 1.320~1.330 4蒸发残渣,w/% ≤ 0.002 5酸度(以 H+计),b/(mmol/g

Chemical reagent — Reference material for gas chromatography — Dichloromethane

Determination of Olaquinol in Meat and Aquatic Products Liquid Chromatography-Mass Spectrometry/Mass Spectrometry

Ethanol fuel. Determination of ethanol content by method of gas chromatography




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